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PROJECT NAME
IBEX
BASED ON
Roland AF-100 Bee Baa
EFFECT TYPE
Silicon fuzz
PROJECT SUMMARY
An early silicon fuzz with a prominent mid-scoop and footswitchable clean boost mode.
Actual size is 2.3" x 2.14" (main board) and 2.3" x 1.05" (bypass board).
IBEX SILICON FUZZ
BUILD DIFFICULTY
Intermediate
DOCUMENT VERSION
1.0.0 (2021-10-22)
1

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Summary of Contents for aion IBEX

  • Page 1 EFFECT TYPE DOCUMENT VERSION Silicon fuzz 1.0.0 (2021-10-22) PROJECT SUMMARY An early silicon fuzz with a prominent mid-scoop and footswitchable clean boost mode. Actual size is 2.3” x 2.14” (main board) and 2.3” x 1.05” (bypass board). IBEX SILICON FUZZ...
  • Page 2: Table Of Contents

    Rangemaster. The Ibex is a direct clone of the Bee Baa, shrunk down to fit in a 125B enclosure but including a secondary footswitch to toggle between boost and fuzz modes. The Tone Select footswitch has been changed to a toggle since it’s not a good application of a footswitch, but otherwise everything is exactly...
  • Page 3: Parts List

    LED current-limiting resistor. Adjust value to change LED brightness. LEDR Metal film resistor, 1/4W LED current-limiting resistor. Adjust value to change LED brightness. Film capacitor, 7.2 x 3.5mm 100pF MLCC capacitor, NP0/C0G 10uF Electrolytic capacitor, 5mm Film capacitor, 7.2 x 3.5mm IBEX SILICON FUZZ...
  • Page 4 1/4" phone jack, closed frame Switchcraft 111X or equivalent. 2.1mm DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. BOOST 3PDT Stomp switch, 3PDT 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. IBEX SILICON FUZZ...
  • Page 5: Build Notes

    Setting the boost LED mode The boost sub-circuit in the Ibex is engaged with its own footswitch and has a LED to indicate that it’s engaged. The boost circuit is tied to the master footswitch, so the whole circuit is bypassed regardless of whether it is in boost or fuzz mode.
  • Page 6: Schematic

    BOOST B CONTROL OUTPUT BOOST OUTPUT INPUT JACK FROM SUSTAIN CONTROL INPUT BOOST PATH FROM BOOST OUTPUT BOOST CONTROL 100pF FUZZ BOOST IN 2N5088 PATH FROM SUSTAIN CONTROL 10uF TONE SELECT OMIT 2N5088 2N5088 10uF 10uF 100n IBEX SILICON FUZZ...
  • Page 7: Drill Template

    0, y: +1.06 ø1/4” x: -0.65, y: +0.41 x: 0.65, y: +0.41 ø9/32” ø9/32” CENTER (0,0) x: -0.95, y: -1.10 x: +0.95, y: -1.10 ø5/16” ø5/16” x: -0.765, y: -1.675 x: -0.765, y: -1.675 ø15/32” ø15/32” IBEX SILICON FUZZ...
  • Page 8: Enclosure Layout

    ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B IBEX SILICON FUZZ...
  • Page 9: Wiring Diagram

    WIRING DIAGRAM S.OUT B.IN L.OUT B.IN GND L.OUT +V JACK GND JACK FROM BOOST 125B IBEX SILICON FUZZ...
  • Page 10: Document Revisions

    (In other words: you don’t have to go out of your way to advertise the fact that you use these PCBs, but please don’t go out of your way to hide it. The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 1.0.0 (2021-10-22) Initial release. IBEX SILICON FUZZ...

Table of Contents